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Finding the Fourth Proportional to 347,818.80, 521,375.16 and 197,748.88

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Solution

The fourth proportional to 347,818.80, 521,375.16 and 197,748.88 is: 296,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,818.80 : 521,375.16 = 197,748.88 : x
  2. Step 2: Convert to fraction form
    347,818.80/521,375.16 = 197,748.88/x
  3. Step 3: Cross multiply
    347,818.80x = 521,375.16 × 197,748.88
  4. Step 4: Simplify right side
    347,818.80x = 103,101,353,949.82
  5. Step 5: Solve for x
    x = 103,101,353,949.82/347,818.80
  6. Step 6: Final answer
    x = 296,422.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.